Deployed applications accessing other deployed applications JAR files, instead of their own.

JBoss is accessing the jar files from the incorrect deployed applications. For example:

App1.ear is deployed which contains a App1.war which contains thirdparty.jar version 1.
App2.war is deployed which contains thirdparty.jar version 2.

The code in App1.war will sometimes use the classes in thirdparty.jar version 2 instead of thirdparty.jar version 1.